20051056 has 20 divisors (see below), whose sum is σ = 39383392. Its totient is φ = 9887616.

The previous prime is 20051047. The next prime is 20051063. The reversal of 20051056 is 65015002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7416 + ... + 9751.

Almost surely, 2^20051056 is an apocalyptic number.

It is an amenable number.

20051056 is a deficient number, since it is larger than the sum of its proper divisors (19332336).

20051056 is a wasteful number, since it uses less digits than its factorization.

20051056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17248 (or 17242 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 20051056 is about 4477.8405509799. The cubic root of 20051056 is about 271.6725442332.

Adding to 20051056 its reverse (65015002), we get a palindrome (85066058).

The spelling of 20051056 in words is "twenty million, fifty-one thousand, fifty-six".